Vvedenīe v kurs istorīi russkago i︠a︡zyka. Chastʹ 1. Istoricheskīĭ prot︠s︡ess obrazovanīi︠a︡ russkikh plemen i nari︠e︡chīĭ.
Shakhmatov, Aleksei Aleksandrovich.
The Hague, 
1967.
Facsimile reprint of the 1916 edition, Petrograd.